How to Fix Error Code 30126-4-0 Office 365 – Guide

How To Fix 30126-4-0 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Microsoft Windows Firewall

For Windows 8 1) Press Win key + Q. A search box will show up on right hand side. 2) In Control Panel Window, Open “Windows Firewall”. 3) On left pane you will find “Turn Windows Firewall on or off”Warning: If you are logged in as Normal user you may be asked to 4) Press “Turn off Windows Firewall (not recommended)” under each network location and then Click “OK”